CN106765075A - A kind of vortex burner of many coal adaptabilities - Google Patents
A kind of vortex burner of many coal adaptabilities Download PDFInfo
- Publication number
- CN106765075A CN106765075A CN201611266581.9A CN201611266581A CN106765075A CN 106765075 A CN106765075 A CN 106765075A CN 201611266581 A CN201611266581 A CN 201611266581A CN 106765075 A CN106765075 A CN 106765075A
- Authority
- CN
- China
- Prior art keywords
- air
- enlarging
- burner
- coal
- secondary air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D1/00—Burners for combustion of pulverulent fuel
- F23D1/02—Vortex burners, e.g. for cyclone-type combustion apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2201/00—Burners adapted for particulate solid or pulverulent fuels
- F23D2201/20—Fuel flow guiding devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2209/00—Safety arrangements
- F23D2209/20—Flame lift-off / stability
Abstract
The invention discloses a kind of vortex burner of many coal adaptabilities, the burner is main by central air hose, and secondary air channel, tertiary-air pipe, Secondary Air swirl vane, central air hose enlarging, primary air piping enlarging and secondary air channel enlarging etc. are constituted.The present invention is designed by rational burner enlarging and coordinates rational air distribution pipe design, form fractional combustion, burner outlet is set to form the Central backflow area of larger stabilization, and more coal dusts can be made to be gathered in recirculating zone border, the larger coal dust of particle diameter can be made in burner outlet swirling recirculation flow simultaneously, extend residence time of the big particle diameter coal dust in burner outlet high-temperature region, it is ensured that coal dust catches fire and stablize burning in time；Designed vortex burner simple structure, transformation is convenient, and all kinds of bituminous coal and anthracite just can be efficiently used by adjusting air distribution, and is adapted to burning mixed coal, can be widely applied to Industrial Boiler and uses multiple types coal dust, improves many coal adaptabilities of Industrial Boiler.
Description
Technical field
All kinds of coals and Blended Coal Combustion technical field are used the present invention relates to industrial coal powder boiler, is related to a kind of many coals to fit
The vortex burner of answering property.
Background technology
China's primary energy is main based on coal, and China is one of most abundant country of coal reserves in the world.
Currently, middle-size and small-size coal-burned industrial boiler is that China's main coal in addition to station boiler is equipped, with coal-burned industrial boiler nearly 600,000
Platform, year coal consumption up to 6.4 hundred million tons, wherein pulverized-coal fired boiler using suspension combustion mode because having boiler efficiency higher.It is different
Coal has different combustion characteristics when burning, but generally, the design of coal burner is a certain specific just for burning
The coal dust of coal, when coal is changed, easily there is the bad phenomenon of burning in burner, and boiler operatiopn is adversely affected.
In Industrial-Enterprises in China, especially those equip the enterprise of small and medium-sized industrial coal powder boilers, often according to market coal price
Fluctuation and coal resource provisioning change and use the coal that coal differs greatly.But when coal of burning changes, due to not right
Burner and boiler are transformed in time（Boiler improvement is costly and time-consuming more long, boiler and burner is not changed typically
Make）, cause boiler combustion unstable, thermal efficiency reduction, or even burner occur and be burned, the problems such as ash erosion.
Further, since Blended Coal Combustion technology can effectively facilitate effective utilization of unburnable coal, by extensive both at home and abroad
Concern, for ensure two kinds of coals of different combustion characteristics by same burner in stove simultaneously efficient burning, it is necessary to designed
Burner has wider coal adaptability, while high-quality coal efficient burning is realized, it is also possible to meet unburnable coal stabilization
The demand of burning.Vortex burner has export center recirculating zone larger, and burner hearth flow field stabilization, Combustion Efficiency of Coal Powder is high
The features such as, it is widely used in all kinds of pulverized-coal fired boilers, especially mediumand smallscale industrial boilers.Therefore, to meet industrial production need
Ask, it is ensured that mediumand smallscale industrial boilers can efficient stable use Coal rank, promote Coal rank in industrial coal powder boiler
Efficiently utilize, design a kind of vortex burner of many coal adaptabilities and just seem very necessary.
The content of the invention
The present invention relates to a kind of vortex burner of many coal adaptabilities, when realizing that burner uses Coal rank,
Ensure that coal dust is caught fire in time, stabilization is burnt and efficient after-flame, and can guarantee that burner and the permanent stable operation of boiler.
Above-mentioned purpose of the invention is achieved through the following technical solutions：
A kind of vortex burner of many coal adaptabilities, including central air hose, primary air piping, secondary air channel, tertiary-air pipe,
Secondary Air swirl vane, central air hose enlarging, primary air piping enlarging and secondary air channel enlarging；The primary air piping（2）It is arranged on
Central air hose（1）Outside, primary air piping（2）With central air hose（1）Between be First air passage（9）；The secondary air channel（3）Set
In primary air piping（2）Outside, secondary air channel（3）With primary air piping（2）Between be secondary air channel（10）；Described tertiary-air pipe exists
Secondary air channel outside, tertiary-air pipe（4）And secondary air channel（3）Between be tertiary air passage（11）, tertiary-air pipe（4）Entrance is direct current
Entrance, is conducive to stabilizing burner exit flow flow field and pulverized coal flame, high temperature center recirculating zone in extension burner hearth, and suitably drop
Low burn burner outlet flame temperature, for the coal dust for catching fire supplements burnout degree.Meanwhile, need to adjust First air when different coal dusts are used
When, by appropriate adjustment tertiary-air velocity, high volatile coal dust can be prevented effectively from burner outlet because ignition temperature is too high, or because
High-temperature flue gas wash away the problem of burner hearth wall and slagging scorification caused by coal-air ratio is different；When carrying out Blended Coal Combustion, can be by part air quantity
Filled into by tertiary-air pipe, by fractional combustion, it is ensured that coal dust catches fire and efficient after-flame in time, it is to avoid because of fat coal in combustion process
Powder largely consumes oxygen, cause the supply of fire retardant coal dust oxygen it is not enough, cannot after-flame phenomenon, each coal when improving Blended Coal Combustion
Burn-off rate.
The swirl vane（5）It is arranged on primary air piping（2）And secondary air channel（3）Between, positioned at secondary air channel（10）
Exit；The central air hose enlarging, primary air piping enlarging and secondary air channel enlarging are separately mounted to central air hose exit, one
At secondary wind tube outlet and secondary air channel exit, can increase Central backflow area, it is to avoid coal dust entrained by First air is involved in rotation
Flow Secondary Air and cause ignition lag, more coal dusts is concentrated on the high-temperature area near Central backflow area border, strengthen coal dust
Caloic with high-temperature flue gas is exchanged, and is conducive to the stabilization burning of coal dust.Simultaneously, moreover it is possible to make greater particle size coal dust directly into center
Recirculating zone, and in burner outlet rotation, extend greater particle size coal dust in the residence time in burner outlet high-temp combustion region,
Be conducive to ensureing catching fire and after-flame for greater particle size coal dust.
Further, the central air hose enlarging（6）Relative combustion device outlet inside contract or with burner outlet flush, in
Heart airduct enlarging（6）Horizontal length is more than or equal to primary air piping enlarging（7）Horizontal length, secondary air channel enlarging horizontal length is big
In or equal to central air hose enlarging（6）Horizontal range and central air hose enlarging to burner outlet（6）Horizontal length sum.In
The enlarging of heart airduct and primary air piping enlarging are concordant with tertiary air outlet or inside contract, and advantageously ensure that more coal dusts enter backflow
Area, while being conducive to increasing the back-flow velocity of burner outlet, rolls up Central backflow area and inhales more high-temperature flue gas, enhancing coal dust with
The heat exchange of high-temperature flue gas in recirculating zone, it is ensured that coal dust catches fire in time, and stabilizing burner outlet flame.Direct current tertiary air is conducive to
The fractional combustion of coal dust is realized, while stablizing flame and reducing flame temperature, the generation for reducing NOx in stove is additionally aided.
Further, the central air hose enlarging（6）Primary air piping enlarging is less than or equal to burner axis angle theta 1
（7）With burner axis angle theta 2, secondary air channel enlarging（8）It is true according to each enlarging horizontal length with burner axis angle theta 3
It is fixed, secondary air channel enlarging（8）End is provided with and tertiary-air pipe（4）Parallel platform.
Further, described First air passage（9）It is First air straight-flow air passage, described secondary air channel（10）
It is by Secondary Air swirl vane（5）The Secondary Air vortex gas-flow passage of formation, described tertiary air passage（11）For tertiary air is straight
Gas circulation road.
In summary, the beneficial effects of the invention are as follows：
1st, high temperature center recirculating zone in burner hearth can be extended, and suitably reduces burner outlet flame temperature, be the coal dust for catching fire
Supplement burnout degree；
2nd, high volatile coal combustor exit temperature can be prevented effectively from too high, or because coal-air ratio difference causes high-temperature flue gas to wash away stove
Bore wall face and there is the problem of slagging scorification；
3rd, fractional combustion is realized, it is ensured that coal dust catches fire and efficient after-flame in time；Super sea coal in combustion process can be prevented effectively from
A large amount of consumption oxygen, and the not enough problem of fire retardant coal dust firing oxygen supply, the burn-off rate of each coal when improving Blended Coal Combustion；
4th, avoid First air coal dust from being involved in swirl secondary air and cause ignition lag, more coal dusts is concentrated on burner outlet
The caloic of the high-temperature region on Central backflow area border, enhancing coal dust and high-temperature flue gas is exchanged, and is conducive to the stabilization burning of coal dust；
5th, greater particle size coal dust can be made directly into Central backflow area, and in burner outlet rotation, extends greater particle size coal dust
The residence time of high-temperature region at burner outlet, may advantageously facilitate catching fire and after-flame for greater particle size coal dust.
Brief description of the drawings
Fig. 1 schematic structural views of the invention；
Schematic diagram is arranged in Fig. 2 burners air channel；
Fig. 3 burner flaring angle parameter schematic diagrames；
Fig. 4 burner enlarging horizontal length parameter schematic diagrames；
The common vortex burner thermo parameters method figures of Fig. 5；
The vortex burner temperature profile of many coal adaptabilities of Fig. 6 present invention；
Speed field pattern in the common vortex burner stoves of Fig. 7；
Speed field pattern in the vortex burner stove of many coal adaptabilities of Fig. 8 present invention；
Fig. 9 difference burner structure greater particle size coal dust typical motions path comparison diagram；
Main member symbol description
1st, central air hose 2, primary air piping
3rd, secondary air channel 4, tertiary-air pipe
5th, Secondary Air swirl vane 6, central air hose enlarging
7th, primary air piping enlarging 8, secondary air channel enlarging
9th, First air passage 10, secondary air channel
11st, tertiary air passage.
Specific embodiment
The invention will be further described with specific embodiment for explanation below in conjunction with the accompanying drawings：
Embodiment：A kind of vortex burner of many coal adaptabilities, as depicted in figs. 1 and 2, including central air hose 1, once
Airduct 2, secondary air channel 3, tertiary-air pipe 4, Secondary Air swirl vane 5, central air hose enlarging 6, primary air piping enlarging 7 and Secondary Air
Pipe enlarging 8.The centrally disposed outside of airduct 1 of primary air piping 2, secondary air channel 3 is arranged on the outside of primary air piping 2, and tertiary-air pipe 4 sets
Put in the outside of secondary air channel 3, swirl vane 5 is arranged between primary air piping 2 and secondary air channel 3, goes out positioned at secondary air channel 10
At mouthful.Central air hose enlarging 6 is arranged on the exit of central air hose 1, and primary air piping enlarging 7 is arranged on the exit of primary air piping 2, two
Secondary airduct enlarging 8 is arranged on the exit of secondary air channel 3.It is direct current First air passage 9, one between central air hose 1 and primary air piping 2
It is swirl secondary air passage 10 between secondary airduct 2 and secondary air channel 3, is direct current tertiary air between secondary air channel 3 and tertiary-air pipe 4
Passage 11.First air passage 9 is First air straight-flow air passage, and secondary air channel 10 is formed by Secondary Air swirl vane 5
Secondary Air vortex gas-flow passage, tertiary air passage 11 is tertiary air straight-flow air passage.First air is using direct current wind from First air
Passage 9 is sent into, and Secondary Air and tertiary air are sent into by spiral case from secondary air channel 10 and tertiary air passage 11 respectively.
Burner structure is simple, and processing and fabricating is convenient, and the stabilization burning of Coal rank can be realized by adjusting air distribution.One
First air ensure that more coal dusts enter central high temperature recirculating zone using direct current wind in secondary wind passage 9, help to increase coal dust
Concentration, increases the heat exchange of coal dust and high-temperature flue gas, coal dust is faster obtained more heats that catch fire.Eddy flow two in secondary air channel 10
Secondary wind can strengthen the disturbance of furnace gas in freeze profile into larger Central backflow area is stablized, and contribute to the stabilization of coal dust
Burning and efficient after-flame.Direct current tertiary air is sent into by Secondary Air outside in tertiary air passage 11, forms fractional combustion, is contributing to
While stabilization flame, can roll up and inhale more high-temperature flue gas for coal powder ignition fires with stabilization with the length of elongation center recirculating zone
Burn and sufficient heat is provided, burner outlet flame temperature can be reduced, it is to avoid flame temperature is higher, and help to reduce stove
The generation of interior NOx.Burn different coal dusts when, the air quantity in each air channel can be adjusted according to coal dust species, it is ensured that coal dust can be steady
Fixed burning and efficient after-flame.
As shown in figure 3, central air hose enlarging 6 is d0 apart from burner outlet distance, d0 is more than or equal to 0.Central air hose
The horizontal length of enlarging 6 be d1, the horizontal length of primary air piping enlarging 7 be d2, secondary air channel enlarging horizontal length be d3, d1 be more than or
Equal to d2, d3 is more than or equal to d1+d0.As shown in figure 4, central air hose enlarging 6 is less than or equal to burner axis angle theta 1
Primary air piping enlarging 7 and burner axis angle theta 2, secondary air channel enlarging 8 and burner axis angle theta 3, θ 3 is according to each enlarging
Horizontal length determines that the end of secondary air channel enlarging 8 is provided with the platform parallel with tertiary-air pipe 4.
Central air hose enlarging 6 is pressed from both sides less than or equal to primary air piping enlarging 7 with burner axis angle theta 1 with burner axis
Angle θ 2, coal dust pours ignition lag phenomenon caused by burner outlet swirl secondary air in being conducive to avoiding First air, meanwhile,
The coal dust of greater particle size can be made directly into the Central backflow area of burner outlet, and rotated in burner outlet, prolonged
Long residence time, contributes to the larger coal dust of particle diameter to catch fire and after-flame in time.Central air hose enlarging 6 and the end of primary air piping enlarging 7
With burner outlet apart from d0, d0 is more than or equal to 0, it is ensured that more coal dusts concentrate on Central backflow area border, improves at end
Central backflow area border coal powder density, reduces igniting temperature of pulverized-coal, quickly absorbs institute's calorific requirement of catching fire, and contributes to the steady of coal dust
Fixed burning.Meanwhile, this structure coordinates with tertiary-air pipe 4 can make pulverized coal flame more stable, to efficient burning low-volatite coal
It is favourable with mixed coal.
It is many to common vortex burner and the present invention respectively under identical operating mode using the softwares of ANSYS CFX 14.0
The process of coal combustion of the vortex burner of coal adaptability carries out numerical simulation, obtains temperature field in furnace result such as Fig. 5
With shown in Fig. 6.By contrast, apart from burner outlet farther out, i.e., coal powder ignition postpones for ordinary burner high-temperature region, is adapted to
Burning super sea coal, but when burning mixed coal or fire retardant coal, it is unfavorable to coal powder ignition and after-flame.Ordinary burner is formed
Temperature field it is too high, high-temperature region easily causes furnace wall wall slagging scorification, because central air hose enlarging and First air near wall
Pipe enlarging is protruded, and is mixed with Secondary Air and tertiary air rapidly after coal powder ignition, causes coal dust firing speed fast, ignition temperature mistake
It is high；Meanwhile, because the diameter of tertiary-air pipe is relatively small, in common middle-size and small-size burner design, to stabilization and reduction flame
Temperature action is not obvious, therefore maximum temperature may be up to 1790 DEG C in stove, and too high in-furnace temperature is to some unburnable coals
Burning is also unfavorable, while can also promote to generate the pernicious gases such as substantial amounts of NOx.And the vortex burner adapted to from many coals
The temperature field for being formed（Fig. 6）As can be seen that rational structure, suitable tertiary-air pipe diameter and tertiary air quantity, it is ensured that stove
Good thermo parameters method in thorax, coal powder ignition in time, not only improves burning and the after-flame of super sea coal, but to Blended Coal Combustion and
The stabilization burning of fire retardant coal dust is favourable；The uniform distribution of temperature field that the vortex burner that many coals are adapted to is formed, puts down in stove
Between 1100 DEG C to 1300 DEG C, maximum temperature is about 1500 DEG C to equal temperature, both there is provided meeting various coal dusts stabilization burnings
Temperature field, while advantageously reducing the formation and discharge of the pernicious gases such as NOx again；Because high-temperature region is close to burner hearth center, also
Beneficial to avoiding furnace wall wall slagging scorification.
Common vortex burner and many coal adaptabilities of the invention under identical operating mode respectively to load 4t/h
The process of coal combustion of vortex burner carries out numerical simulation, obtains in stove speed field distribution as shown in Figure 7 and Figure 8.It is logical
Cross contrast to understand, the recirculating zone of the vortex burner formation of common vortex burner and many coal adaptabilities of the invention
Length is respectively 2m and 2.2m, and the reflux area length of the vortex burner of many coal adaptabilities is slightly longer, is conducive to volume to inhale more
Many high-temperature flue gas.The highest back-flow velocity of the Central backflow area that common vortex burner is formed is about 5m/s, and of the invention
The highest back-flow velocity that the vortex burner of many coal adaptabilities is formed reaches 8.17m/s；In addition, the latter's high speed recirculating zone
Closer to burner outlet, be conducive to the heating to breeze airflow, and then be conducive to catching fire in time and stablizing burning for coal dust.
Using simulation softward to common vortex burner and the vortex burner of many coal adaptabilities of the invention
Process of coal combustion carry out numerical simulation, obtain the contrast of greater particle size coal dust typical motion path, as a result as shown in Figure 9.It is logical
Cross contrast and understand that, compared to common vortex burner, the vortex burner of many coal adaptabilities can make greater particle size
, in burner outlet swirling recirculation flow, extension coal dust is in the residence time of burner outlet high-temperature area, enhancing coal dust and height for coal dust
The mixing of warm flue gas, is conducive to the heating to the larger coal dust of particle diameter, coal dust is caught fire in time；Particularly to the burning of fire retardant coal dust
It is highly beneficial, the after-flame of coal dust can be effectively facilitated.
The above, only present pre-ferred embodiments, each part is disposed with various ways, therefore can not be limited with this
The scope that the fixed present invention is implemented, i.e., the equivalence changes made according to scope of the present invention patent and description and modification, all
Should still remain within the scope of the patent.
Claims (4)
1. a kind of vortex burner of many coal adaptabilities, including central air hose（1）, primary air piping（2）, secondary air channel
（3）, tertiary-air pipe（4）, Secondary Air swirl vane（5）, central air hose enlarging（6）, primary air piping enlarging（7）Expand with tertiary-air pipe
Mouthful（8）；It is characterized in that：Primary air piping（2）Centrally disposed airduct（1）Outside, primary air piping（2）With central air hose（1）Between
It is First air passage（9）, secondary air channel（3）It is arranged on primary air piping（2）Outside, secondary air channel（3）With primary air piping（2）Between be
Secondary air channel（10）, tertiary-air pipe（4）It is arranged on secondary air channel（3）Outside, tertiary-air pipe（4）And secondary air channel（3）Between be
Tertiary air passage（11）；Swirl vane（5）It is arranged on primary air piping（2）And secondary air channel（3）Between, positioned at secondary air channel
（10）Exit；Central air hose enlarging（6）Installed in central air hose（1）Exit, primary air piping enlarging（7）Installed in First air
Pipe（2）Exit, secondary air channel enlarging（8）Installed in secondary air channel（3）Exit.
2. the vortex burner of many coal adaptabilities according to claim 1, it is characterised in that：Central air hose enlarging
（6）Relative combustion device outlet inside contract or with burner outlet flush, central air hose enlarging（6）Horizontal length is more than or equal to one
Secondary airduct enlarging（7）Horizontal length, secondary air channel enlarging horizontal length is more than or equal to central air hose enlarging（6）Go out to burner
The horizontal range of mouth and central air hose enlarging（6）Horizontal length sum.
3. the vortex burner of many coal adaptabilities according to claim 2, it is characterised in that：The central air hose
Enlarging（6）Primary air piping enlarging is less than or equal to burner axis angle theta 1（7）With burner axis angle theta 2, secondary air channel
Enlarging（8）Determined according to each enlarging horizontal length with burner axis angle theta 3, secondary air channel enlarging（8）End is provided with and three
Secondary airduct（4）Parallel platform.
4. the vortex burner of many coal adaptabilities according to claim 1, it is characterised in that：Described First air
Passage（9）It is First air straight-flow air passage, described secondary air channel（10）It is by Secondary Air swirl vane（5）Two for being formed
Secondary wind vortex gas-flow passage, described tertiary air passage（11）It is tertiary air straight-flow air passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611266581.9A CN106765075A (en) | 2016-12-31 | 2016-12-31 | A kind of vortex burner of many coal adaptabilities |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611266581.9A CN106765075A (en) | 2016-12-31 | 2016-12-31 | A kind of vortex burner of many coal adaptabilities |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106765075A true CN106765075A (en) | 2017-05-31 |
Family
ID=58952422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611266581.9A Pending CN106765075A (en) | 2016-12-31 | 2016-12-31 | A kind of vortex burner of many coal adaptabilities |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106765075A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107575861A (en) * | 2017-10-09 | 2018-01-12 | 上海锅炉厂有限公司 | A kind of Industrial Boiler coal burner of wide coal adaptability |
| CN108800126A (en) * | 2017-10-25 | 2018-11-13 | 中国石油化工股份有限公司 | A kind of online not blowing out low NO remodeling method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0756134A1 (en) * | 1995-07-25 | 1997-01-29 | Babcock Lentjes Kraftwerkstechnik GmbH | Method and burner for reducing the formation of NOx burning coal dust |
| CN101578482A (en) * | 2007-07-18 | 2009-11-11 | 哈尔滨工业大学 | Low nox swirling pulverized coal burner |
| CN103629663A (en) * | 2013-11-15 | 2014-03-12 | 东方电气集团东方锅炉股份有限公司 | Swirl pulverized coal burner |
| CN204153769U (en) * | 2014-10-21 | 2015-02-11 | 烟台龙源电力技术股份有限公司 | Burner arch mouth, burner and combustion system |
| CN104832918A (en) * | 2015-05-05 | 2015-08-12 | 集美大学 | Novel cyclone bias pulverized coal burner |
-
2016
- 2016-12-31 CN CN201611266581.9A patent/CN106765075A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0756134A1 (en) * | 1995-07-25 | 1997-01-29 | Babcock Lentjes Kraftwerkstechnik GmbH | Method and burner for reducing the formation of NOx burning coal dust |
| CN101578482A (en) * | 2007-07-18 | 2009-11-11 | 哈尔滨工业大学 | Low nox swirling pulverized coal burner |
| CN103629663A (en) * | 2013-11-15 | 2014-03-12 | 东方电气集团东方锅炉股份有限公司 | Swirl pulverized coal burner |
| CN204153769U (en) * | 2014-10-21 | 2015-02-11 | 烟台龙源电力技术股份有限公司 | Burner arch mouth, burner and combustion system |
| CN104832918A (en) * | 2015-05-05 | 2015-08-12 | 集美大学 | Novel cyclone bias pulverized coal burner |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107575861A (en) * | 2017-10-09 | 2018-01-12 | 上海锅炉厂有限公司 | A kind of Industrial Boiler coal burner of wide coal adaptability |
| CN108800126A (en) * | 2017-10-25 | 2018-11-13 | 中国石油化工股份有限公司 | A kind of online not blowing out low NO remodeling method |
| CN108800126B (en) * | 2017-10-25 | 2019-10-11 | 中国石油化工股份有限公司 | A kind of online not blowing out low NO remodeling method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201680364U (en) | Efficient low NOx pulverized coal burner for small and medium-sized industrial boilers | |
| CN101315184B (en) | Wall type arranged horizontal rich-lean direct current combustion device | |
| CN103727536B (en) | The multistage adjustable strong and weak rotation flow impact gas burner of ultralow nitrogen | |
| CN103836621B (en) | A kind of low nitrogen oxide swirling burner of fractional combustion | |
| CN107559821B (en) | The multiple-pass industrial coal powder boiler of flue gas recirculation and vortex burner overhead | |
| CN105114951B (en) | The low nitrogen oxygen gas burner of the double classifications of trailing edge reflux | |
| CN104832918A (en) | Novel cyclone bias pulverized coal burner | |
| CN203628654U (en) | Ultralow-nitrogen multistage intensity adjustable swirl-opposed gas combustor | |
| CN103134049A (en) | Multi-corner tangential multi-scale pulverized coal decoupling combustion device and decoupling combustion method thereof | |
| CN202884901U (en) | Boiler capable of realizing reignition of exhaust gas coal powder by using high-temperature flue gas and reducing NOx | |
| CN108895430A (en) | A kind of efficient low NO of coupled rotational flow coal dust firing and enhanced flue gas recirculationxChain furnace | |
| CN104613466B (en) | A kind of double volute spiral coal powder burner with natural gas jet pipe and precombustion chamber | |
| CN202002096U (en) | Water-coal-slurry low-nitrogen swirl burner | |
| CN201787567U (en) | Direct-flow pulverized coal burner | |
| CN104654292B (en) | Space shade type straight-through pulverized coal burner | |
| CN106765075A (en) | A kind of vortex burner of many coal adaptabilities | |
| CN202101217U (en) | Biomass steam boiler with horizontal water and fire tubes | |
| CN105402723A (en) | Coal-fired power plant turbulent burner suitable for low-order mixed coal combustion | |
| CN206274163U (en) | Coal burner | |
| CN206600793U (en) | A kind of coal-burning power plant's turbulent burner suitable for Blended Coal Combustion | |
| CN201212676Y (en) | Horizontal bias DC combustion apparatus of wall arrangement | |
| CN204176635U (en) | The boiler of two tune wind coal burner overhead | |
| CN201496958U (en) | W-flame cyclone separation low-oil ignition burner | |
| CN203642167U (en) | W flame boiler with multiple over-fire air nozzles | |
| CN203656910U (en) | W flame boiler and combustion device thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170531 |
|
| RJ01 | Rejection of invention patent application after publication |